Management method of probe carrier, probe carrier manufacturing apparatus and probe carrier managing apparatus

ABSTRACT

A method for appropriately managing quality and distribution of probe carrier is provided. Probe carriers manufactured by a probe carrier manufacturing apparatus having ejecting portions for ejecting probe solutions, each containing a probe which can be specifically coupled with a target substance, for applying the probe solution on a carrier, and a plurality of probe tanks storing mutually different probe solutions for supplying ejecting portions. Each probe tanks are labeled with the bar-code. The labeled bar-code is read by the bar-code reader. On the basis of the read bar-code, the probe solution stored in the probe tank is identified. On the other hand, the probe tank is mounted on the ejecting portion.

[0001] This application is based on Patent Application No. 2001-094366 filed Mar. 28, 2001 in Japan, the content of which is incorporated hereinto by reference.

BACKGROUND OF THE INVENTION

[0002] 1. Field of the Invention

[0003] The present invention relates to a managing method of a probe carrier, a probe carrier manufacturing apparatus and a probe carrier managing apparatus.

[0004] 2. Description of the Related Art

[0005] A probe, which can specifically couple with a target substance of specific base sequence, such as short single strand DNA strip and the like tagged by radioactive isotope or fluorescent material, has been used for gene examination or analysis of base sequence of gene DNA. As means for providing a plurality of kinds of probes simultaneously, probe carriers, such as DNA chip prepared by arraying a plurality of probes to be coupled with target substances as objects for detection on a carrier of glass and the like or other carrier, are attracting attention.

[0006] In the recent years, study has been progressed for application of technology relating to an ink-jet printer, to manufacturing of the probe carrier to enable to fix tens of thousands on a single probe carrier. While the ink-jet printer fixes ink at accurate positions on a printing medium by ejecting ink droplets of quite trace amount, a high density probe carrier can be manufactured by injecting a solution containing the probe in place of the ink in one operation.

[0007] Upon manufacturing the probe carrier, probes have to be fixed on the chip with desired arrangement. However, there is a problem that it is difficult or even impossible to constantly maintain accurate arrangement of the probes in the order of tens of thousands set forth above.

[0008] On the other hand, when the probe carrier, such as DNA chip and the like is commercialized to put into the market, it is possible to cause failure in the probe carrier during a period from a manufacturing stage to use for gene examination or for other purpose via distribution stage. As a cause of failure,

[0009] (1) taking the wrong probe in the manufacturing stage, alternation of the probe or mixing of a plurality of probes;

[0010] (2) alternation of the probe in the distribution stage;

[0011] (3) misidentification of result of inspection in inspection stage, and other causes are considered.

[0012] However, failure of the probe carrier is normally found in inspection stage, cause of failure cannot be specified unless appropriately managed.

SUMMARY OF THE INVENTION

[0013] An object of the present invention is to provide a management method of a probe carrier, a probe carrier manufacturing apparatus and a probe carrier managing apparatus which permits appropriate management of quality and distribution of the probe carrier.

[0014] To attain this object, a first aspect of the present invention provides a management method of probe carriers employing a probe carrier managing apparatus having a reading device of an indicator for managing probe carriers manufactured by a probe carrier manufacturing apparatus having ejecting portions for ejecting the probe solutions each containing a probe which can be specifically coupled with a target substance, for application of the probe solutions on carriers for producing probe carriers, and a plurality of containers for accommodating mutually different probe solutions to be supplied to the containers, the containers respectively labeled with indicators, the probe carrier managing apparatus performs steps of reading the indicators on the plurality of containers according to a predetermined order by the reading device, comparing information about a plurality of the read indicators with information about a plurality of indicators stored in a storage device in a predetermined order and notifying the result of comparison.

[0015] Here, the plurality of containers may be mounted in the ejecting portions.

[0016] Here, the plurality of containers may be formed in a predetermined arrangement.

[0017] Here, the indicator may be a bar-code.

[0018] A second aspect of the present invention provides a management method of probe carrier for managing probe carriers labeled with indicators, using a probe carrier managing apparatus, comprising steps of storing the indicator and information relating to each probe carrier labeled with the indicator with correspondence therebetween in a storage device, receiving information about the indicator from outside and extracting information relating to the probe carrier corresponding to the received information about the indicator, from the storage device.

[0019] The management method of probe carrier may further comprises a step of transmitting at least one information relating to the indicator and the probe carrier, stored in the storage device, in response to an externally received demand.

[0020] Also, The management method of probe carrier may further comprises steps of reading the indicator on the probe carrier using the reading device and extracting information relating to the probe carrier corresponding to information about the read indicator from the storage device.

[0021] Here, the indicator may be a bar-code.

[0022] A third aspect of the present invention provides a probe carrier manufacturing apparatus comprising ejecting portions for ejecting a probe solutions, each containing a probe which can be specifically coupled with a target substance, for applying the probe solutions on a carrier for producing a probe carrier and a plurality of containers for accommodating mutually different probe solutions for supplying to the ejecting portions, each of the containers being labeled with indicators to identify the accommodated probe.

[0023] Here, the plurality of containers may be mounted on the ejecting portions.

[0024] Here, the plurality of containers may be formed in a predetermined arrangement.

[0025] Here, the indicator may be a bar-code.

[0026] A fourth aspect of the present invention provides a probe carrier managing apparatus for managing probe carrier manufactured using the probe carrier manufacturing apparatus, comprising a storage means for storing a plurality of the indicators in a predetermined order, a reading means for reading the indicators labeled on the plurality containers according to a predetermined order, a comparing means for comparing information about a plurality of the read indicators and information about a plurality of indicators stored in the storage means and a notifying means for notifying the result of comparison by the comparing means.

[0027] A fifth aspect of the present invention provides a probe carrier managing apparatus for managing probe carrier labeled with indicator, comprising a storage means for storing the indicator and information relating to probe carrier labeled with the indicator, a receiving means for externally receiving the indicator and an extracting means for extracting information relating to probe carrier corresponding to information about the received indicator from the storage means.

[0028] A sixth aspect of the present invention provides a method of comparing information about probe carriers, comprising steps of providing a solution applying apparatus having a plurality of liquid applying units for applying solutions on a carrier wherein each of the solutions including a probe which can be specifically coupled with a target substance, a plurality of containing units for containing the solutions to be provided to each of the liquid applying units and a plurality of indicators for identifying types of the solutions in the containing units, obtaining information about the types of the plurality of solutions to be applied by the solution providing apparatus on the carrier based on the indicators, obtaining predetermined information about the types of the solutions to be applied on the carrier and determining whether the predetermined information with the information based on the indicators.

[0029] The method of comparing information about probe carriers may further comprising the step of changing the solutions in the containing units when the predetermined information is not matched to the information based on the indicator.

[0030] With the present invention, failure occurred in production of the probe carrier can be prevented. As a result, appropriate quality control can be performed.

[0031] On the other hand, since the probe carrier manufacturer applied the present invention has the head unit, in which the probe tank is mounted on the ejecting portion. Thus, the probe carrier manufacturer can perform quality control of the probe carrier per head unit.

[0032] Furthermore, with the present invention, the arrangement of the probe array consisted of a large number of kinds fixed on the probe carrier can be easily managed.

[0033] The above and other objects, effects, features and advantages of the present invention will become more apparent from the following description of embodiments thereof taken in conjunction with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

[0034]FIG. 1 is a perspective view of a probe tank provided in a probe carrier manufacturing apparatus, to which the present invention is applied;

[0035]FIG. 2 is a perspective view of the probe tank provided in a probe carrier manufacturing apparatus, to which the present invention is applied;

[0036]FIG. 3 is a side elevation of the probe tank provided in a probe carrier manufacturing apparatus, to which the present invention is applied, which is illustrated a side wall as transparent for showing inside of the probe tank;

[0037]FIG. 4 is a perspective view showing a schematic configuration of a head unit provided in the probe carrier manufacturing apparatus, to which the present invention is applied;

[0038]FIG. 5 is a diagrammatic illustration showing a configuration of the major portion of the probe carrier manufacturing apparatus using the head unit shown in FIG. 4;

[0039]FIG. 6 is an illustration showing a schematic configuration of one probe carrier;

[0040]FIG. 7 is an illustration showing a system configuration for managing the probe carrier;

[0041]FIG. 8 is a flowchart showing a process of one embodiment of probe carrier management according to the present invention;

[0042]FIG. 9 is a flowchart showing a process of one embodiment of probe carrier management according to the present invention;

[0043]FIG. 10 is a flowchart showing a process of one embodiment of probe carrier management according to the present invention; and

[0044]FIG. 11 is a flowchart showing a process of one embodiment of probe carrier management according to the present invention.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

[0045] In the present invention, the probes fixed to the substrate are specifically associable to specific target substances. In the embodiment of the present invention, the target substances are nucleic acids, and the probes are mono-strand nucleic acids which have complemental base sequence to the whole or part of the target nucleic acid, so that the probes can specifically hybridize with the base sequence of the target nucleic acids. Further, the probes include oligonucleotides, polynucleotides, and other polymers that can recognize specific targets. The term “probe” means both of individual molecules having probe functions such as polynucleotide molecules and a mass of molecules having same probe functions fixed on the surface at separate positions such as polynucleotides with same sequences, often including molecules so-called ligands. Further, probes and targets are often exchangeably used, and the probes are substances either associable to targets as parts of ligand-antiligand (sometimes called receptor) pairs or changeable to substances that associate thereto. The probes and targets in the present invention can include bases found in nature and similar substances.

[0046] Examples of probes held on the substrate include oligonucleotides having base sequences hybridizable to target nucleic acids and having a bonding part to the substrate via linkers, the probe having structures connected to the surface of the substrate in the bonding part. The probe is preferably mono-strand nucleic acid which has base sequence complemental to all or part of target nucleic acid and can hybridize specifically with the target nucleic acid. Further, in such a configuration the positions of the bonding part to the substrate in the oligonucleotide molecules are not limited as far as desired hybridization reaction is not damaged.

[0047] The probes adopted in the probe carriers manufactured by the method of the present invention are appropriately selected in their purpose of use. In order to implement the method of the present invention appropriately, the probes are preferably DNAs, RNAs, cDNAs (complementary DNAs), PNAs, oligonucleotides, polynucleotides, other nucleic acids, oligopeptides, polypeptides, proteins, enzymes, substrates for enzymes, antibodies, epitopes for antibodies, antigens, hormones, hormone receptors, ligands, ligand receptors, oligosaccharides, or polysaccharides, of which two or more can be used in combination if necessary.

[0048] In the present invention, plural kinds of these probes fixed on the separate regions (such as dot-shaped spots) of the surface of the substrate (including internal surfaces of hollow or ring shaped carriers) are called “probe carrier”, and those arranged at determined intervals are called “probe array”.

[0049] It is desirable that probe materials have structures bondable to the solid phase substrate, and are bonded to the solid phase substrate utilizing such bondable structures after ejection and application of probe solutions. The structures bondable to the solid phase substrate can be formed by introducing organic functional groups such as amino, mercapto, carboxyl, hydroxyl, acid halide (—COX), halogen, aziridine, maleimide, succinimide, isothiocyanate, sulfonyl chloride (—SO₂Cl), aldehyde (—CHO), hydrazine, and iodoaceatamide groups into the probe material molecules in advance. In that case, it is also necessary to introduce structures (organic functional groups) onto the surface of the substrate in advance, that form covalent bonds by reacting with the various functional groups described above. For example, when the probe material has amino groups, succinimide ester, isothiocyanate, sulfonyl chloride, or aldehydecan be introduced on the surface of the substrate. When the probe material has mercapto (thiol) groups, maleimide can be introduced on the surface of the substrate. When a glass substrate is used as the substrate, desired functional groups can be introduced on the surface thereof using a silane coupling agent having desired functional groups as well as a cross linker having desired functional groups.

[0050] Hereinafter, embodiments of the present invention will be discussed in detail with reference to the drawings.

[0051] (First Embodiment)

[0052]FIGS. 1 and 2 are perspective views showing schematic configuration of probe tanks incorporated in a probe carrier manufacturing apparatus, to which the present invention is applied. One probe tank 100 is a container storing a solution containing probe consisted of one kind of base sequence (probe solution) therein, which corresponds to an ink tank in the conventional ink-jet printer. The configuration is similar to the conventional ink tank and is to heat a heater (not shown) by a current externally applied to an electrical contact 101 for ejecting the probe solution stored in the probe tank through a nozzle 102.

[0053] On the other hand, as shown in FIG. 2, on an upper portion of the probe tank 100, a bar-code 103 as indicator for identifying a kind of the probe is provided.

[0054]FIG. 3 is a side elevation of the probe tank provided in a probe carrier manufacturing apparatus, to which the present invention is applied, which is illustrated a side wall as transparent for showing inside of the probe tank. As shown in FIG. 3, a probe solution 300 stored in the probe tank 100 is heated by a heater (not shown) to be ejected through a nozzle 102 in the direction of arrow A.

[0055]FIG. 4 is a perspective view showing a schematic configuration of a head unit of the probe carrier manufacturing apparatus, to which the present invention is applied. A head unit 400 has an ejecting portion 401 corresponding to a head printing portion in the conventional ink-jet printer and the probe tanks 100 mounted on the ejecting portion 401 and arranged in a predetermined two-dimensional arrangement. Each of probe tanks 100 stores probe solutions respectively containing probes consisted of DNAs having mutually different base sequences.

[0056] A probe carrier manufacturer prepares a plurality of probe tanks storing mutually different probe solutions, selects probe tanks depending upon demand from a customer and assembles a head unit by mounting the selected probe tank on an ejecting portion. In the alternative, a plurality of head units forming mutually different probe array are prepared and a desired head unit is selected upon manufacturing the probe carrier.

[0057]FIG. 5 is a diagrammatic illustration showing a configuration of the major portion of the probe carrier manufacturing apparatus using the head unit shown in FIG. 4. In FIG. 5, the head unit 400 is supported on a shaft 500. On the other hand, a plurality of carriers 503 respectively formed with probe arrays are fixed on a stage 504. In the shown embodiment, a glass substrate is premised as the carrier 503.

[0058] The head unit 502 moves in an X-axis direction in FIG. 5, namely in primary scanning direction as guided by the shaft 501. On the other hand, the stage 504 is moved in Y-axis direction, namely in auxiliary scanning direction. By these operations, the head unit 400 may move in two-dimensional direction relative to the stage 504. It should be noted that while a configuration in the case where a plurality of glass substrates are fixed on the stage to apply the probe in the foregoing discussion in connection with FIG. 5, it is also possible to eject the predetermined probe solution on a carrier formed with large single glass plate, and subsequently to cut the carrier to obtain respective probe arrays.

[0059]FIG. 6 shows one carrier, namely the probe carrier fixed on the stage 504 shown in FIG. 5. On the carrier 503, a plurality of holes (well) 1001 ejecting the probe solution of one kind of base sequence are arranged in two-dimensional array, and a bar-code 1002 is printed as indicator for identifying respective carrier 503.

[0060] Next, with reference to configuration of FIG. 7, a configuration will be described for a system managing the probe carrier manufactured by the foregoing probe carrier manufacturing apparatus. In FIG. 7, a probe carrier managing apparatus 600 is a server for managing entities manufacturing the probe carrier (hereinafter referred to as probe carrier manufacturer) using the foregoing probe carrier manufacturing apparatus. The server includes a modem 605 for connecting to the Internet 640 as a communication network, a display 604 displaying an image, a central processing unit (CPU) controlling the entire probe carrier managing apparatus, a keyboard 603 for inputting data, a storage device 602, such as a hard disk and a bar-code reader 606 as reading device for reading the bar-code.

[0061] In the storage device 602, aggregate of the barcode data of the probe tanks and information relating to probes stored in the probe tanks are stored in a form of database. On the other hand, in the storage device 602, programs for executing processes relating to the present invention are stored. CPU 601 provided in the computer reads out and executes a program code stored in the storage device to realize the present invention.

[0062] A hospital terminal 610 is an information processing unit installed in a hospital performing gene examination using the probe carrier, and a distributor terminal 620 is information processing unit installed in distributor performing distribution of the probe carrier. All of these information processing units include personal computers (PCs) having communication interfaces for connecting with the Internet 640 and bar-code reader, respectively.

[0063] In the shown embodiment of the system, the hospital terminal 610, the distributor terminal 620 and the probe carrier managing apparatus 600 are connected through the Internet 640. Therefore, the hospital terminal 610 and the distributor terminal 620 may access to the probe carrier managing apparatus 600 to obtain information stored in the storage device 602 and to transmit information input to respective terminals.

[0064] Next, one example of the process of the shown embodiment of the probe carrier management will be explained with reference to flowcharts shown in FIGS. 8 to 10.

[0065]FIGS. 8 and 9 illustrate a process in the manufacturing stage. At first, the probe carrier managing apparatus 600 receive information relating to order for the probe carrier from the hospital terminal 610 installed in the hospital as orderer (step S701). In the information received here, information of a series of probes forming the probe carrier is contained in a predetermined order.

[0066] The probe carrier managing apparatus 600 extracts barcode data corresponding to probe contained in the received information from bar-code data in the database to temporarily store in the predetermined region of the storage device (step S702).

[0067] The probe carrier manufacturer selects one of a plurality kinds of probe tanks which are prepared preliminarily and reads the bar-code labeled for the probe tank using the bar-doe reader 606 of the probe managing apparatus 600 (step S703). The probe carrier managing apparatus 600 determines whether the bar-code data input via the bar-code reader 606 is contained in the bar-code data extracted at step S702 or not (step S704). When the bar-code data is contained in the extracted bar-code data, the probe carrier managing apparatus 600 displays an instruction on the display 604 that the selected probe tank is necessary for production of the probe carrier. The probe carrier manufacturer obtains the selected probe tank as the probe tank for formation of the head unit on the basis of the display (step S705). Then, process is advanced to step S706. When the bar-code data of the probe tank is not contained in the extracted bar-code data, the fact is displayed on the display. The probe carrier manufacturer returns to step S703 based on the display to repeat the reading process of the bar-code with selecting new probe tank.

[0068] At step S706, the probe carrier managing apparatus 600 checks whether all probe solutions required for preparation of the ordered probe carrier are obtained or not. When all necessary probe tanks are obtained, the fact is displayed on the display 604. The probe carrier manufacturer mounts all obtained probe tanks on the ejecting portion to form the head unit (step S707). Then, process is advanced to step S708 of FIG. 9. On the other hand, if all of necessary probe tanks are not obtained, the process returns to step S703 to repeat from bar-code reading process.

[0069] At step S708 of FIG. 9, the probe carrier manufacturer reads the bar-code of the probe tank mounted on the head unit using the bar-code reader of the probe carrier managing apparatus 600 in the predetermined order. The probe carrier managing apparatus 600 compares the barcode data obtained from the bar-code reader and a series of bar code extracted at step S702 to verify that the probe tanks are arranged at predetermined arrangement. Then, result of comparison is displayed on the display to notify to the probe carrier manufacturer (step S709). If probe tank arrangement is incorrect, the probe tanks are rearranged (step S713) to repeat from step S708.

[0070] The probe carrier manufacturer assembles the formed head unit in the probe carrier manufacturing apparatus after verification of correct arrangement of the probe tank on the basis of notice at step S709, to produce the probe carrier (step S710). Next, for each probe carrier manufactured as above, the bar code for identifying the chip per se is written by known method (step S711).

[0071] The manufacturer reads the bar-code written on the probe carrier using the bar-code reader 606. The probe carrier managing apparatus 600 stores data relating to the probe carrier, such as the read out bar-code, manufacturing date, delivery destination, data identifying arrangement of the probe array on the chip and so on with correspondence as aggregate of data (database) (step S712).

[0072]FIG. 10 shows a flowchart showing the process executed by the distributor in the distribution stage. At step S801, the distributor terminal 620 is used to demand obtaining of information relating to delivering products to the probe carrier managing apparatus 600. The probe carrier managing apparatus 600 responds to demand received from external distributor terminal 620 to transmit at least one information relating to the bar-code data and probe carrier stored in the storage device. At step S802, the bar-code reader of the distributor terminal 620 is used to read out the bar-code attached to the delivering products. The distributor terminal 602 compares the read out data with the bar-code data obtained from the probe carrier managing apparatus 600 (step S803).

[0073] As a result of comparison, when discrepancy of bar-code data is caused, process is repeated from step S801. On the other hand, when all of read out bar-code data are matched with the one from the probe carrier managing apparatus, verified delivering products are delivered.

[0074]FIG. 11 is a flowchart showing a procedure to be executed by the probe carrier manufacturer when failure of the probe carrier is detected in an inspection stage.

[0075] When failure of the probe carrier is detected as a result of gene examination in the hospital, the bar-code of the probe carrier is read out using the bar-code reader provided in the hospital terminal 610 and the bar-code data read as above is transmitted to the probe carrier managing apparatus 600.

[0076] When the probe carrier managing apparatus 600 receives the bar-code of the imperfect probe carrier from the hospital terminal 610 (step S901), information of the manufacturing data and so on of the probe carrier corresponding to the bar-code is extracted from the database to display on the display to notify failure to the probe carrier manufacturer (step S902). The probe carrier manufacturer identifies the head unit of the probe carrier manufacturer used upon manufacturing on the basis of the notified information to inspect probe solution (step S903).

[0077] By performing such management of the probe carrier, the manufacturer can certainly form the desired arrangement of the probe tank. Also, false recognition of the delivering products in the distribution stage can be prevented. Also, even when failure is caused in the probe carrier in the inspection stage, failure of the probe carrier can be analyzed by the manufacturer. On the other hand, when the result of analysis indicates that the probe carrier is normal, misidentification in the inspection stage or alternation of the probe carrier, and so on in the distribution stage can be predicted.

[0078] It is also possible to return the probe carrier from the hospital to the probe carrier manufacturer without sending the bar-code of the imperfect probe carrier from the hospital terminal. In this case, the manufacturer reads the bar-code of the returned probe carrier using the bar-code reader of the probe carrier managing apparatus 600 and analyze a cause of failure.

[0079] In addition to the embodiment set for above, the present invention can be implemented in the following embodiment.

[0080] (1) In the hospital, re-inspection may be performed for the delivered products. In this case, the operator of the hospital terminal performs inspection of the delivered products shown in the flowchart of FIG. 10.

[0081] (2) In the bar-code to be written on the probe tank and the probe carrier, information indicative of the identification information of the manufacturer, manufacturing date may be included.

[0082] (3) While an example where the bar-code is attached to each probe carrier after manufacturing of the probe carrier in the shown embodiment, it is also possible to prepare a stage preliminarily attached the bar-codes per the carrier to manufacture the probe carrier using such stage.

[0083] (4) The information to be stored in the database of the probe carrier managing apparatus is not limited to that in foregoing embodiment but can store the result of examination in gene examination or the result of measurement using the probe carrier, for example. In this case, the bar-code data of the probe carrier and the result of inspection or the result measurement using the probe carrier is input to the hospital terminal in the hospital to transmit to the probe carrier managing apparatus. The probe carrier managing apparatus brings the received bar-code data into correspondence with the inspection result or the measurement result and stores the data and the result in the database. The inspection result or the measurement result of each probe carrier collectively stored can be used for quality control of the probe carrier by the prove carrier manufacturer, management of distribution step by the distributor, and so forth.

[0084] (5) A process of the probe carrier management is not limited to the procedure as illustrated in the flowcharts of FIGS. 8 to 11.

[0085] (6) It should be noted that when the liquid ejecting apparatus is used upon applying a liquid containing probe, sample and so on, the liquid ejecting apparatus, in which liquid ejecting portions, each including liquid containing portion, a nozzle to be connected to the liquid containing portion and to eject the liquid, a liquid ejection energy generating means for generating energy for ejecting the liquid from the nozzles, are provided in number required depending upon kind of the liquid to be ejected. As the liquid ejecting energy generating means, various systems, such as piezoelectric system, heating system and so on may be employed. However, for arranging a large number of liquid ejecting portions required to be provided mutually independent of each other, in high density, it is preferred to employ a heater element generating heat energy for heating the liquid to cause film boiling to eject the liquid from a nozzle opening by a pressure developed by film boiling. Furthermore, it is preferred to employ a structure, in which bubble generated by film boiling is communicated with the ambient air through the nozzle opening.

[0086] (7) Furthermore, in the shown embodiment, the bar-code reading process and the like on the probe carrier manufacturer side may be performed manually or automatically using a scanning apparatus which makes the bar-code reader scan.

[0087] In addition, although the so-called bar-code is used as an indicator in the shown embodiment, the present invention is not limited to this configuration. For example, an IC chip or an indicator which can be identified by means whereby a magnetic form is identified. Instead, a plurality of marks, which take mutually different shape respectively, may be also used.

[0088] Moreover, the configuration of the head unit may be a form in which tanks and nozzles are aligned in a line.

[0089] When probe tanks on the head unit are changed to manufacture new probe carriers after a certain probe carriers are manufactured, it is preferable to provide a cleaning process of nozzles and a solution-providing unit to prevent contamination by the former solution.

[0090] Furthermore, storage containers which can store a plurality of probe tanks may be arranged such that indicators are located in one plane to control an environment of a storage of the probe solution in the storage container.

[0091] The present invention has been described in detail with respect to preferred embodiments, and it will now be apparent from the foregoing to those skilled in the art that changes and modifications may be made without departing from the invention in its broader aspects, and it is the intention, therefore, in the appended claims to cover all such changes and modifications as fall within the true spirit of the invention. 

What is claimed is:
 1. A management method of probe carriers employing a probe carrier managing apparatus having a reading device of an indicator for managing probe carriers manufactured by a probe carrier manufacturing apparatus having ejecting portions for ejecting said probe solutions each containing a probe which can be specifically coupled with a target substance, for application of the probe solutions on carriers for producing probe carriers, and a plurality of containers for accommodating mutually different probe solutions to be supplied to said containers, said containers respectively labeled with indicators, said probe carrier managing apparatus performs steps of: reading the indicators on said plurality of containers according to a predetermined order by said reading device; comparing information about a plurality of the read indicators with information about a plurality of indicators stored in a storage device in a predetermined order; and notifying the result of comparison.
 2. A management method of probe carrier as claimed in claim 1, wherein said plurality of containers are mounted in said ejecting portions.
 3. A management method of probe carrier as claimed in claim 1 wherein said plurality of containers are formed in a predetermined arrangement.
 4. A management method of probe carrier as claimed in claim 1, wherein said indicator is a bar-code.
 5. A management method of probe carrier for managing probe carriers labeled with indicators, using a probe carrier managing apparatus, comprising steps of: storing said indicator and information relating to each probe carrier labeled with said indicator with correspondence therebetween in a storage device; receiving information about said indicator from outside; and extracting information relating to the probe carrier corresponding to the received information about said indicator, from said storage device.
 6. A management method of probe carrier as claimed in claim 5, which further comprises a step of transmitting at least one information relating to said indicator and the probe carrier, stored in said storage device, in response to an externally received demand.
 7. A management method of probe carrier as claimed in claim 5, which further comprises steps of: reading said indicator on said probe carrier using said reading device; and extracting information relating to the probe carrier corresponding to information about the read indicator from said storage device.
 8. A management method of probe carrier as claimed in claim 5, wherein said indicator is a bar-code.
 9. A probe carrier manufacturing apparatus comprising: ejecting portions for ejecting a probe solutions, each containing a probe which can be specifically coupled with a target substance, for applying said probe solutions on a carrier for producing a probe carrier; and a plurality of containers for accommodating mutually different probe solutions for supplying to said ejecting portions, each of said containers being labeled with indicators to identify the accommodated probe.
 10. A probe carrier manufacturing apparatus as claimed in claim 9, wherein said plurality of containers are mounted on said ejecting portions.
 11. A probe carrier manufacturing apparatus as claimed in claim 9, wherein said plurality of containers are formed in a predetermined arrangement.
 12. A probe carrier manufacturing apparatus as claimed in claim 9, wherein said indicator is a bar-code.
 13. A probe carrier managing apparatus for managing probe carrier manufactured using a probe carrier manufacturing apparatus as defined in claim 9, comprising: a storage means for storing a plurality of said indicators in a predetermined order; a reading means for reading the indicators labeled on said plurality containers according to a predetermined order; a comparing means for comparing information about a plurality of the read indicators and information about a plurality of indicators stored in said storage means; and a notifying means for notifying the result of comparison by said comparing means.
 14. A probe carrier managing apparatus for managing probe carrier labeled with indicator, comprising: a storage means for storing said indicator and information relating to probe carrier labeled with said indicator; a receiving means for externally receiving said indicator; and an extracting means for extracting information relating to probe carrier corresponding to information about said received indicator from said storage means.
 15. A method of comparing information about probe carriers, comprising steps of: providing a solution applying apparatus having a plurality of liquid applying units for applying solutions on a carrier wherein each of said solutions including a probe which can be specifically coupled with a target substance, a plurality of containing units for containing said solutions to be provided to each of said liquid applying units and a plurality of indicators for identifying types of said solutions in said containing units; obtaining information about the types of said plurality of solutions to be applied by said solution providing apparatus on said carrier based on said indicators; obtaining predetermined information about the types of said solutions to be applied on the carrier; and determining whether said predetermined information with said information based on said indicators.
 16. A method of comparing information about probe carriers as claimed in claim 15, further comprising the step of changing said solutions in said containing units when said predetermined information is not matched to said information based on said indicator. 